Share on Tumblr The tar sands or bitumen (a mixture of sand, clay and heavy crude oil) underlie 140,000 km2 of Alberta’s boreal forest, an area approximately the size of the entire state of New York. These deposits are the second largest source of oil in...

Share on Tumblr Tar Sands Facts: The technical term for the oil extracted from tar sands is crude bitumen, which is defined as a viscous (thick), heavy oil that will not flow to a well in its natural state. Crude bitumen is extracted from the mined tar...